2004.5-2005 Factory LLY Duramax Cylinder Head (Driver Side) Fleece Performance Style Upgrades and Parts This 3-layer progressive

This 3-layer progressive

The kit includes a billet aluminum valve cover

DOES NOT FIT Hybrid or Vehicles with Conventional Shifter

5L Gas Ecoboost has threaded holes for 11 exhaust studs to be used

• (3) 12mm Sealing Washers

2004.5-2005 Factory LLY Duramax Cylinder Head (Driver Side) Fleece Performance Style Upgrades and Parts This 3-layer progressiveIntroducing our Freedom Series cylinder heads for the 6. 6L Duramax! Each cylinder head is manufactured in our state of the art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valve guides, springs, and valve seals. Perfect for the daily driver or towing application, these heads utilize stock valves with a 45 degree angle on